This XM-18 3.5 Inch is a Gen 5 model that features a 3.5 inch sheepfoot blade made of premium CPM 20CV stainless steel, .165 inch thick, with a stonewash finish, a notched thumb rest for secure purchase, a press fit ambidextrous thumb stud that locks up against the frame for superior strength against sideways torque, and a flipper for fast opening. The ergonomic handle, 4.75 inches closed, has an incredibly strong pivot made of 17-4 PH stainless steel. The non lock side has a titanium liner and a textured blue G10 scale for secure grip, a CNC machined stonewash 6AL4V titanium back with frame lock and Hinderer Lockbar Stabilizer, open frame construction with large standoffs for strength and ease of cleaning, a lanyard hole and an end to end reversible pocket clip. The Hinderer XM-18 3.5 Inch Gen 5 Sheepfoot has an overall open length of 8.25 inches, and it weighs 5.6 ounces. Proudly made in the USA.